11847855258 has 28 divisors (see below), whose sum is σ = 26645488458. Its totient is φ = 3949284600.

The previous prime is 11847855223. The next prime is 11847855281. The reversal of 11847855258 is 85255874811.

It is a happy number.

11847855258 is a `hidden beast` number, since 1 + 1 + 84 + 7 + 8 + 552 + 5 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10521220329 + 1326634929 = 102573^2 + 36423^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 4061593 + ... + 4064508.

Almost surely, 2^11847855258 is an apocalyptic number.

11847855258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11847855258 is an abundant number, since it is smaller than the sum of its proper divisors (14797633200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11847855258 is an frugal number, since it uses more digits than its factorization.

11847855258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8126121 (or 8126106 counting only the distinct ones).

The product of its digits is 3584000, while the sum is 54.

The spelling of 11847855258 in words is "eleven billion, eight hundred forty-seven million, eight hundred fifty-five thousand, two hundred fifty-eight".